If what you intend to sell would give rise to a likelihood of confusion as to the source of the product with respect to the Seahawks, then it could...

If I submit a photograph to an establishment, should I protect it and if so, how?

Register the copyright in the photo. Once you begin using it to designate your business as a source of goods or services, you should consider...

Can someone use my registered trademark in the same goods/services if they add words to it?

Short answer: No. It's like asking "Can someone live on my property without permission if they add a shed to it?"

What can I do about fake rental postings in my name/number?

You may have to hire a private investigator. A local attorney should be able to help you with this.

Needing assistance in copyright law, promissory estoppel and breach of contract.

This is a contract question. Confer with a local business attorney.

What role will a solicitor have with lawyers and conveyancers?

This would probably be in a courtroom in a British-system country. In such courts, the solicitor prepares the case and the barrister presents it...

I have a question regarding an existing domain name and trademarking a new name and how I can get that domain name without pay.

If a domain name is riding your coattails by imitating your trademark, there are procedures you can use to force a transfer (see, e.g., the...

My previous employer is using photos of me to advertise at home shows on website and as decals on company vehicles.

You might have a claim under local privacy law. You will need to confer with an attorney licensed to practice in Iowa about this.

Copyright video granted permision then revoked

It would depend on the exact wording of the e-mails you received. The best bet, however, is not to use the other person's video.

Can you list the names of celebrities in an ad in a newspaper without their permission?

If your list implies any sort of endorsement or affiliation, then you could be subjecting yourself to liability under personality/publicity rights...